Werk #10747: ibm_svc_mdisk: don't crash on discovery

Component Checks & Agents
Title ibm_svc_mdisk: don't crash on discovery
Date Feb 24, 2020
Checkmk Editon Checkmk Raw (CRE)
Checkmk Version 2.0.0i1 1.6.0p10
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

On devices that do not support the lsmdisk command the check plugin ibm_svc_mdisk failed so that the "Check_MK Discovery" service showed the error "UNKN - check failed - please submit a crash report!". This is fixed.

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